LITERATURE CITED 



Collins, Gerald B., Charles D. Volz, and Parker S. Trefethen 



1954. Mortality of salmon fingeriings exposed to pulsating direct 

 current. U. S. Fish and Wildlife Service, Fish. Bull., 

 No. 92, vol. 56, pp. 61-81. 



Lethlean, N. G. 



1953 . An investigation into the design and performance of electric 

 fishscreens and electric fish counters. 

 Trans. Roy. Soc. Edin. vol. 62, Part II, (13) pp. 505-509. 



McMillan, F. O. 



1928. Electric fish screen. 



Bull. U. S. Bur. Fish., vol. 44, pp. 97-128. 



Okada, Mituyo 



1929. On the action of electric current on fishes. II. Electro - 



phobotaxis of fishes in a group. 



Jour. Imp. Fish. Inst. vol. 25 (1) pp. 1-11. 



42 82055 



